Home / 5,157.24-7,735.86-2,078.52

Finding the Fourth Proportional to 5,157.24, 7,735.86 and 2,078.52

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Solution

The fourth proportional to 5,157.24, 7,735.86 and 2,078.52 is: 3,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.24 : 7,735.86 = 2,078.52 : x
  2. Step 2: Convert to fraction form
    5,157.24/7,735.86 = 2,078.52/x
  3. Step 3: Cross multiply
    5,157.24x = 7,735.86 × 2,078.52
  4. Step 4: Simplify right side
    5,157.24x = 16,079,139.73
  5. Step 5: Solve for x
    x = 16,079,139.73/5,157.24
  6. Step 6: Final answer
    x = 3,117.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.